Recent content by merc850

  1. merc850

    Trim pump question

    Mercury Manual C-90-75512 8C-12 ACCESORIES
  2. merc850

    Trim pump question

    Have you bled the cylinders?
  3. merc850

    Manuals for a 1965 Merc 110 and 1966 65 HP

    https://www.oldmercs.com/category_s/1188.htm
  4. merc850

    1979 Mercury 80 HP Tach issues

    Check the AC voltage across the yellow wires it should be 13+ and go up when the motor speeds up. Rectifier testing.
  5. merc850

    1979 Mercury 80 HP power trim

    This is the wiring diagram for the inside the boat pump
  6. merc850

    My 1979 9.8 Project

    Here's the truth about reed valves: if one or more are stuck open, broken or chipped that might cause carb firing.
  7. merc850

    My 1979 9.8 Project

    Looks like a good motor, how's the spark - LU?
  8. merc850

    I've got a 1971 Mercury 110 9.8hp outboard with a stuck tiller handle

    This is what I found in the '75 manual - if it uses screws they're Nr. 3 Philips, undo them and pull the handle out; maybe all it needs is greasing. There's a possibility that the stator plate under the flywheel is stiff/seized only way to find out is to try and rotate it.
  9. merc850

    kiekhaefer

    Parts are here including operator's manual https://www.oldmercs.com/
  10. merc850

    Mercury classic 50 HP - part 2

    Pull the powerhead off the DSH then strip it down to the bare block follow these instructions I'm assuming that a Classic 50 has no cylinder head.
  11. merc850

    Lift 1970's 150 Mercury with no power!?

    If you're moving it on the road tighten the knob to hold it up or put a 2x4 in the space don't use the tilt locks.
  12. merc850

    Lift 1970's 150 Mercury with no power!?

    On the trim pump there's a knob turn it CCW.
  13. merc850

    Distributor harness 1976 mercury 115

    I had an old distributor with the same problems so I removed the grommet and dug out the epoxy? and found the terminals - I used a dremel tool with a round tip.
  14. merc850

    Throttle arm slop

    Take the cowling off and check the movement (not running) of the throttle arm from idle stop to full. At idle (N) the arm should be on the stop - at full the arm should hit the throttle stop. Adjust the barrel in the anchor to pull the arm to idle stop. Maybe you should grease the box if it has...
  15. merc850

    Intro and question

    https://www.oldmercs.com/category_s/2010.htm
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